Where can I look up the differences between the "normal" and the EVO engines ??Hi Guys!

My engine has developed a cold engine piston slap. I was planning to rebuild it this summer, but have a chance to get an EVO 2 engine. Problem is that that engine is non catalytic and that is a no -no here in Germany.

Included are the intake & airbox as well as the nice header, but no electronics or afm.